kernel_samsung_sm7125

jenna

History

Li Zefan 079d3f6531 perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites Show statistics for allocations and frees on different cpus: ------------------------------------------------------------------------------------------------------ Callsite \| Total_alloc/Per \| Total_req/Per \| Hit \| Ping-pong \| Frag ------------------------------------------------------------------------------------------------------ perf_event_alloc.clone.0+0 \| 7504/682 \| 7128/648 \| 11 \| 0 \| 5.011% alloc_buffer_head+16 \| 288/57 \| 280/56 \| 5 \| 0 \| 2.778% radix_tree_preload+51 \| 296/296 \| 288/288 \| 1 \| 0 \| 2.703% tracepoint_add_probe+32e \| 157/31 \| 154/30 \| 5 \| 0 \| 1.911% do_maps_open+0 \| 796/12 \| 792/12 \| 66 \| 0 \| 0.503% sock_alloc_send_pskb+16e \| 23780/495 \| 23744/494 \| 48 \| 38 \| 0.151% anon_vma_prepare+9a \| 3744/44 \| 3740/44 \| 85 \| 0 \| 0.107% d_alloc+21 \| 64948/164 \| 64944/164 \| 396 \| 0 \| 0.006% proc_alloc_inode+23 \| 262292/676 \| 262288/676 \| 388 \| 0 \| 0.002% create_object+28 \| 459600/200 \| 459600/200 \| 2298 \| 71 \| 0.000% journal_start+67 \| 14440/40 \| 14440/40 \| 361 \| 0 \| 0.000% get_empty_filp+df \| 53504/256 \| 53504/256 \| 209 \| 0 \| 0.000% getname+2a \| 823296/4096 \| 823296/4096 \| 201 \| 0 \| 0.000% seq_read+2b0 \| 544768/4096 \| 544768/4096 \| 133 \| 0 \| 0.000% seq_open+6d \| 17024/128 \| 17024/128 \| 133 \| 0 \| 0.000% mmap_region+2e6 \| 11704/88 \| 11704/88 \| 133 \| 0 \| 0.000% single_open+0 \| 1072/16 \| 1072/16 \| 67 \| 0 \| 0.000% __alloc_skb+2e \| 12544/256 \| 12544/256 \| 49 \| 38 \| 0.000% __sigqueue_alloc+4a \| 1296/144 \| 1296/144 \| 9 \| 8 \| 0.000% tracepoint_add_probe+6f \| 80/16 \| 80/16 \| 5 \| 0 \| 0.000% ------------------------------------------------------------------------------------------------------ ... Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-mm@kvack.org <linux-mm@kvack.org> LKML-Reference: <4B0B6E9F.6020309@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		15 years ago
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Documentation	perf tools: Add support for breakpoint events in perf tools	15 years ago
bench	perf bench: Improve sched-message.c with more comfortable output	15 years ago
util	perf tools: Fix compilation on powerpc	15 years ago
.gitignore	perf tools: .gitignore += perf*.html	16 years ago
CREDITS	…
Makefile	perf: Use default compiler mode by default	15 years ago
builtin-annotate.c	perf symbols: Look for vmlinux in more places	15 years ago
builtin-bench.c	perf bench: Improve builtin-bench.c for more friendly output	15 years ago
builtin-buildid-list.c	perf buildid-list: Always show the DSO name	15 years ago
builtin-help.c	perf: Clean up trivial style issues in builtin-help.c	15 years ago
builtin-kmem.c	perf kmem: Measure kmalloc/kfree CPU ping-pong call-sites	15 years ago
builtin-list.c	perf list: Fix large list output by using the pager	16 years ago
builtin-probe.c	perf/probes: Rename perf probe events group name	15 years ago
builtin-record.c	perf record, x86: Print more intelligent error message when sampling fails	15 years ago
builtin-report.c	perf symbols: Look for vmlinux in more places	15 years ago
builtin-sched.c	perf symbols: Look for vmlinux in more places	15 years ago
builtin-stat.c	perf stat: Do not print ratio when task-clock event is not counted	15 years ago
builtin-timechart.c	perf tools: perf_header__read() shouldn't die()	15 years ago
builtin-top.c	perf tools: Move graph_line and graph_dotted_line from top	15 years ago
builtin-trace.c	perf symbols: Look for vmlinux in more places	15 years ago
builtin.h	perf: Add 'perf kmem' tool	15 years ago
command-list.txt	Merge branch 'perf/core' into perf/probes	15 years ago
design.txt	perf_event: Add alignment-faults and emulation-faults software events	15 years ago
perf.c	perf: Add 'perf kmem' tool	15 years ago
perf.h	perf tools: Add ia64 support for tools/perf/	15 years ago